Alright, let's work through 8417 times 158 step by step
8417 × 158 = 158 × (8417)
+ 158 × 7 that results in 1106
+ 158 × 10 that equals 1580
+ 158 × 400 what gives us 63200
+ 158 × 8000 what gives us 1264000

= 1329886
